M5 Nylon Nut, Nyloc Insert Nut, T Type (Standard) Metric, Class 6 Steel BZP, DIN 985

M5 Standard Nyloc Nut

M5 Nyloc nut with a nylon insert providing a locking action and preventing the nut from loosening due to vibration. The nylon insert also creates a seal against the ingress of liquids making this hex nut a versatile choice.

Manufactured from class 6 steel with a bright zinc plating for mid-level corrosion resistance. These T-type Nyloc nuts are commonly used in a variety of applications, including automotive, aerospace, machinery, and general construction.

T-type nuts are generally shallower than P-Type nuts and are also known as nylon lock nuts or nylon locking nuts. A versatile hex nut used both DIY enthusiasts and professionals alike.

M5 Nyloc Nut Specification

• Diameter (TD): M5 - 5mm
  
• Nut width / socket size (SS): 8mm max 
  
• Nut height (NH): 5mm max - (NH1): 3.2mm min
  
• Pitch: 0.8mm
  
• Material: Grade 6 steel
  
• Finish: Bright zinc plated (BZP)
  
• Insert Material: Nylon
  
• Thread: Metric

Part of a larger range of nylon lock nuts available from Fusion Fixings with bulk price discounts.

FAQs about Nyloc Nuts

What is a nylon insert nut and how does it work?

Nylon insert nuts (often called Nyloc or nylon lock nuts) have a nylon collar inside that grips the bolt threads, creating friction that resists loosening from vibration or movement. 

Can nylon insert nuts be reused once removed?

Yes, but it’s not advised as the nylon insert gradually wears and the locking effectiveness diminishes with repeated use. 

Do I need a washer or spring washer with these nuts?

In most cases no as the nylon insert itself provides locking action. Washers may still be used for load distribution if your job at hand requires it.

Can I use nylon insert nuts in high-vibration applications?

Yes, the internal nylon collar grips the bolt threads, creating friction that resists loosening from vibration. This sees them used on automotive parts, and equipment where vibration is a consideration.

Are nylon insert nuts suitable for marine or outdoor use?

Yes, if the correct material is selected - A2 stainless steel Nyloc nuts have a high correction resistance with A4 stainless steel Nyloc nuts having the highest corrosion resistance, which includes use in salt water and marine environments.